Ryan,
DMT is rate adaptive always has been, in the presence of noise, it slows the speed of the data, until the checksums compare.
This is really old news on RADSL. Of course most people think ISDN is something new?
AT&T in catch up mode.
Please read the PR again, heres a quote:
"and upstream data rates up to one megabit per second."
"at a return rate of 128 kilobits to 1 megabit. "
What is the return rate for a given loop length?
I'm sure DMT could achive an equal upstream data rate, if it were on a
two foot copper loop too!
The folks in the ADSL vs CAP thread will be glad to explain which is the better technology. There is no doubt or question, DMT! JW@KSC
Note the term used: " 128Kps up to 1 megabit.
Sounds like a Car dealership Ad. Yes Sir-ree at Suckeroo Bobs, we will get you moving somewhere between those two speeds.
Then there is the small print, bring your lawyer:
"In other words, RADSL products will have the option to select the highest practical transmission speed automatically or as specified by the telecommunications service provider."
or as specified by the telecommunications service provider.
Now AT&T will want to charge me according to how fast I want to travel the InfoBahn? Yes Sir thats $19.95 for 128kbs $29.95 for etc., etc.
An Old Dog with old tricks.
Phone conversation 4 years ago, upon returning from 5 years in Germany, I was 30 miles away from a friends house in Alabama, wanted to call an let him know I'd be there soon.
*Payphone
Dial Tone" AT&T may I help you, calling Daleville Alabama, "that will be $1.25", What! Daleville is only 30 miles away, "thats correct sir $1.25 for the 1st 3 minutes"... What! I can call Daleville from Germany for a Buck!, "not on a payphone sir!" Yes I can, long enough to say Hi see ya soon, and at least another 30 secs.,, I guess AT&T can't help me.. Goodbye!
Please excuse the sarcasm...
JW@KSC |
